Alexander graham bell. Inventor of the telephone

1. Alexander Graham Bell

Inventor of the Telephone

2.

Alexander Graham Bell
*Born: March 3, 1847
*Parents: Alexander Melville Bell and Elisa Grace
Symonds
*Siblings: 2 brothers, Melville and Edward

3.

Childhood
Alexander Graham Bell grew up in Edinburgh,
Scotland with his family.

4. Learning From the Family

As a child, Bell inherited a
musical talent from his
mother, who was a musician
and also a portrait painter.
He was taught by his
grandfather and father
about public speaking.

5.

Hello Grandpa!
When Bell was 13 years old, he spent a year with his
grandfather in London. To Graham, this year was the
“turning point of his life.”

6.

Herman von Helmholtz
Bell read books in
the library about
Herman von
Helmholtz, a German
scientist who
experimented with
electrical vibrations
to make vowel
sounds.
He researched his experiments so that someday he
might be able to reconstruct them in his own home.

7.

Early Life
Bell at age 29
At the Age of
16, Graham began
to teach music
and speech at a
boys school.
Years later, Bell
started teaching
his fathers visual
speech to deaf
and hearing
impaired children.

8.

Tuberculosis-1870
In 1870, Bell’s two
brothers died of
tuberculosis.
Since Bell was also
threatened his family
decided to move to a
healthier environment,
Canada.

9.

Hello Boston! Good-bye Canada!
After Graham was safe from catching the
disease, his job led him to be a physiology
professor at Boston University in the United
States.

10.

Boston University
While Bell was in Massachusetts, he invented the
harmonic telegraph, an instrument that makes it
possible to send multiple telegraphs on one line.

11.

The Telephone
is Patented
On March 7, 1876,
Bell recieved his
patent for the
telephone.

12.

“Mr.Watson, come here, I want you.”
On March 10, 1876, Alexander Graham Bell was
in his testing room with his partner, Watson.

13.

Reeds
The experiment they were working with had
reeds that were thin and steel. One of the reeds
was stuck so Watson plucked it to try to fix it.

14.

Successful!
When he did, Graham heard the vibration
clearly through the newly invented ‘telephone’.

15.

A Sad day in
History
On August 2, 1922,
Alexander Graham Bell
died at his home in
Baddek Nova Scotia.